Description
Heavy 150 x 25 x 15mm Alnico U-shape with clearly marked poles and a keeper bar
letting students compare four densities by mass alone while the volume is held constant across the set
Wider-aperture concave glass mirror at 75mm with 200mm focal length
general-purpose magnification for lab
Round Bug Viewer with 4X Magnifier Lid Waves & Oscillation_Sound & Resonance Heavy 150 x 25 xClear magnifier lid on this round viewer captures and enlarges small insects or specimens for elementary and middle school entomology observation.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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